Display problems - colour issues!!
I'm posting this in the usage forum as well, as I'm not really sure where it should go!
Basically, if I use fast user switching then when I switch back to my username the display colouring takes on a blue tinge, like the difference between 9300k and 6500k on a CRT monitor. It's really rather annoying as I have to restart the machine to clear it.
Anyone got any ideas on how to fix it???
Regards
Tom
There are at least a few threads in this forum on this subject. In particular:
http://discussions.apple.com/thread.jspa?messageID=2344556
It looks like it's a known bug with a workaround that is at least somewhat helpful....
Similar Messages
-
The display problem in Issue management in Solman
Hi
When i try to log in a defect from the Test script status in STWB
_WORK , my screen on the top menu looks like ???????????????????? . Functionally it's alrite but do u know how i can get rid of ??????????? .Hello Abhishek,
this looks to me as if the menu is not translated. Did you install the language with which you are logged on to the system ?
Best regards
J♀9rgen -
Why does Mozilla Firefox display white colour checkered in yellow?
The browser displays white colours as checkered. And clearly it is not an issue of wrong backgound - checs change when I scroll a page up or down. I've tried reinstalling Firefox but nothing changed. What may cause the problem?
Try to disable hardware acceleration.
*Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"
If disabling hardware acceleration works then check if there is an update available for your graphics display driver.
*https://support.mozilla.org/kb/how-do-i-upgrade-my-graphics-drivers
You can also try to disable color management.<br />
You can set the pref gfx.color_management.mode to 0 on the about:config page to disable Color Management.<br />
You need to close and restart Firefox to make the change effective.
See:
* http://kb.mozillazine.org/gfx.color_management.mode -
sir, i was watching a movie. suddenly my screen display became red and gradient like colour structure, i mean i could see the background but not clear as previously . what could be the possible problem and solution.??
Hey @cpsahoo ,
Welcome to the HP Forums!
I see your notebook has decided to go on the fritz part way through your movie. Let's try to figure this out as soon as possible so you can see if the princess is saved from the evil queen and her tri-headed dragon overlord!
Sorry. Apparently I've been playing too many video games.
It sounds like a graphics card problem. Let's try booting up in safe mode and see if that works:
Windows 8 Safe Mode
Windows 7 Safe Mode
If everything looks good in safe mode download and install the drivers for your graphics card from here: HP - Drivers & Downloads.
If the issue persists in safe mode try an external VGA monitor if you have one. This will tell you if the actual display is the issue or the GPU.
Battling dragons.. I mean fixing a computer is much easier when armed with the right tools and information. It would really help to know which product and operating system you are using. For information on finding your product and model numbers click here: How Do I Find My Model Number or Product Number? To see which version of Windows you are using click here: Which Windows operating system am I running?
Let me know if that works!
Good luck warrior!
May the spirits bless you on your journey!
Please click the "Kudos, Thumbs Up" at the bottom of this post if you want to say "Thanks" for helping!
Please click "Accept as Solution" if you feel my post solved your issue, it will help others find the solution.
The Great Deku Tree
I work on behalf of HP. -
I have Nokia 5800 XM with its version updated to V 21.0.025. I had purchased this phone in Jan 2009 and had no major issues till yesterday.
Today when I unlocked the phone I suddenly saw a scrambled greyish display with flickring lines.
I locked & unlocked the phone again, I got back the normal screen. I repeated locking & unlocking to check whether problem still persist or not, unfortunately the scrambled display showed up every alternate time I locked & unlocked the phone.
I thought, restarting the phone will get rid of this problem, but restart didn't solve the problem.
Then I thought of resetting the phone to its factory setting. I restored the phone to its original settings through *#7370# code but it was a futile effort.
I checked about this issue on the web and found that lot of other people are also facing the same issue.
for instance check the following video link which exactly demonstrates this display problem:
http://www.youtube.com/watch?v=Q9A7yd-2eeA
Now after a lot of reading on the web, I feel the display problem is a hardware issue and will get solved by Nokia Care people only.
I am really disappointed with Nokia for such a poor build quality of this phone.
I trusted Nokia for its superior build quality and durability and opted for this phone but it doesn't lived to its expectations.
Now lets see what happens when I take this phone to Nokia Care...10-Dec-2008 09:46 PM
friedbrains wrote:
10-Dec-2008 11:26 PM
dan2007h wrote:
hi, i got my 5800 last friday and i think its a brilliant phone, but the screen randomly sometimes changes colour to red, green, blue and sometimes purple. I dont know if its a firmware problem (which i hope it is) or a fault with my phone.
Has anyone else experienced this problem with their 5800??
cheers
try to make a full backup of your phone's data and try to do a full factory reset... it might help, otherwise head to the nearest Nokia Care Point
how do you do a full factory reset?? -
Conclusions so far on the display problems?
After reading thread after thread about the display problems this is what I understand:
Most of the 20-inch Alu-iMacs seem to have problems? Not being able to show solid colours without a gradient from top to bottom is the biggest issue?
"Alot" of the 24-inch Alu-Imacs have problems with a left to right gradient, often white to yellowish white.
Apple is not admitting that the Alu-iMacs have general display problems. (Maybe due to too cheap display technique?)
We don't know for sure if it is hardware or software related?
Is wait and see the best practice for one who want to buy a new 20-inch Alu-iMac?
/KristerWhat I'd like to know is why? Could the bottom lamp be getting more power than the top one from the inverter board?
I received a lot of these for our labs and most of them (I haven't opened them all yet) have lower lamps that appear almost twice as bright at the top lamps... It's in the hardware, and I don't know what to do about it.
So, where is the problem? Traditionally the lamps (usually two below and two above) are identical models, so could this be an inverter issue? Has anyone tried to get a voltage reading from the lamps to see how much output the inverter is giving them? (Not at all suggesting, just asking. I know what Apple would say if I asked people to go cracking their iMacs open.)
Could the layer of glass in the LCD be refracting more light toward us in the bottom 2-3 inches and away from us for the top 2-3 inches?
It's frustrating to experience, but worse to not even know what causes it. Because, to Apple engineering... What problem? There must be one bad LCD out there... and we all have it.
Anyway, anyone who has any light to shed on the subject I'd love to hear it... (just add it to the top few inches of my display.)
-John -
Wierd lines on my display and frequent lock-ups w/ and w/o display problems
When booting I sometimes get weird lines and blocks on my display (the GRAY Apple screen) and then it hangs, other times the computer will boot and run fine for 20-30 minutes and then the display goes wonkers with blocks and lines and the computer does not respond. The only way I can get it to boot is to reset the PRAM by letting it CHIME 3x and then occasionally it will boot without issue and run, while other times I still get the blocks and lines on the display.
When I am able to get it to recover and re-boot after the lock-up and display problems and occasionally the box in the middle asking me to re-boot similar to a kernel panic the OPS gives me the option to REPORT the error and here is the error for others who would know more...
Thank you in advance,
Darren
Interval Since Last Panic Report: 104960 sec
Panics Since Last Report: 5
Anonymous UUID: 7D1AEF43-7E19-4F58-A1E0-48FA992A2814
Wed Nov 18 15:49:50 2009
panic(cpu 0 caller 0x9cdb10): NVRM[0/1:0:0]: Read Error 0x00009410: CFG 0xffffffff 0xffffffff 0xd2000000, BAR0 0xd2000000 0x5d3e2000 0x084700a2, D0, P1/4
Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)
0x5c99b7d8 : 0x21b2bd (0x5cf868 0x5c99b80c 0x223719 0x0)
0x5c99b828 : 0x9cdb10 (0xbb7fec 0xc209c0 0xbc3660 0x0)
0x5c99b8c8 : 0x147690d (0x8b5ac04 0x7edf004 0x9410 0xabd962)
0x5c99b908 : 0x1534e6a (0x7edf004 0x9410 0x5c99b968 0x9)
0x5c99b948 : 0xb51ca5 (0x7edf004 0x91ed004 0x0 0x0)
0x5c99b968 : 0xac155b (0x91ed004 0x5c99baa4 0x0 0x0)
0x5c99b9b8 : 0x145f290 (0x7edf004 0x3d0900 0x5c99baa4 0x0)
0x5c99bad8 : 0xab2821 (0x7edf004 0x91cf004 0x815200c 0x200)
0x5c99bb18 : 0xb1f172 (0x7edf004 0x91cf004 0xeb9bcc0 0xeb9bc04)
0x5c99bbc8 : 0xb202db (0x7edf004 0x91f0404 0x0 0x0)
0x5c99bc58 : 0x14bb7a3 (0x7edf004 0x91f0404 0x9 0x2)
0x5c99bd68 : 0x14ed407 (0x7edf004 0x91cf404 0x0 0x0)
0x5c99be98 : 0xad3934 (0x7edf004 0x91ca404 0x0 0x0)
0x5c99bec8 : 0x9d61fb (0x7edf004 0x91ca404 0x0 0x0)
0x5c99bf08 : 0x5491b5 (0x0 0x9499680 0x1 0x29c50a)
0x5c99bf58 : 0x5481e6 (0x9499680 0x1 0x5c99bf88 0x547d9d)
0x5c99bf88 : 0x548640 (0x8abaf00 0x7e9ecc0 0xe780850c 0x2a6e5f)
0x5c99bfc8 : 0x29d68c (0x8abaf00 0x0 0x10 0x88bbfc4)
Kernel Extensions in backtrace (with dependencies):
com.apple.nvidia.nv50hal(6.0.6)@0x136b000->0x17f1fff
dependency: com.apple.NVDAResman(6.0.6)@0x96f000
com.apple.NVDAResman(6.0.6)@0x96f000->0xc21fff
dependency: com.apple.iokit.IOPCIFamily(2.6)@0x932000
dependency: com.apple.iokit.IONDRVSupport(2.0)@0x961000
dependency: com.apple.iokit.IOGraphicsFamily(2.0)@0x943000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
10C540
Kernel version:
Darwin Kernel Version 10.2.0: Tue Nov 3 10:37:10 PST 2009; root:xnu-1486.2.11~1/RELEASE_I386
System model name: MacBookPro3,1 (Mac-F4238BC8)
System uptime in nanoseconds: 3788331456483
unloaded kexts:
com.apple.driver.AppleFileSystemDriver 2.0 (addr 0xf02000, size 0x12288) - last unloaded 94521475551
loaded kexts:
org.virtualbox.kext.VBoxNetAdp 2.2.2
org.virtualbox.kext.VBoxNetFlt 2.2.2
org.virtualbox.kext.VBoxUSB 2.2.2
org.virtualbox.kext.VBoxDrv 2.2.2
com.bresink.driver.BRESINKx86Monitoring 5.0
com.pctools.iantivirus.kfs 1.0.1
com.apple.driver.AppleHWSensor 1.9.2d0 - last loaded 31800108689
com.apple.filesystems.ntfs 3.1
com.apple.filesystems.autofs 2.1.0
com.apple.driver.AppleHDA 1.7.9a4
com.apple.driver.AirPort.Atheros 412.19.4
com.apple.kext.AppleSMCLMU 1.4.5d1
com.apple.driver.SMCMotionSensor 3.0.0d4
com.apple.DontSteal_Mac_OSX 7.0.0
com.apple.driver.AudioIPCDriver 1.1.2
com.apple.driver.AppleIntelMeromProfile 19
com.apple.driver.ACPISMCPlatformPlugin 4.0.1d0
com.apple.driver.AppleLPC 1.4.9
com.apple.driver.AppleBacklight 170.0.14
com.apple.driver.AppleUpstreamUserClient 3.1.0
com.apple.GeForce 6.0.6
com.apple.driver.AppleUSBTrackpad 1.8.0b4
com.apple.driver.AppleUSBTCKeyEventDriver 1.8.0b4
com.apple.driver.AppleUSBTCKeyboard 1.8.0b4
com.apple.iokit.SCSITaskUserClient 2.6.0
com.apple.BootCache 31
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.iokit.IOAHCIBlockStorage 1.6.0
com.apple.iokit.AppleYukon2 3.1.14b1
com.apple.driver.AppleAHCIPort 2.0.1
com.apple.driver.AppleSmartBatteryManager 160.0.0
com.apple.driver.AppleIntelPIIXATA 2.5.0
com.apple.driver.AppleUSBHub 3.8.4
com.apple.driver.AppleFWOHCI 4.4.0
com.apple.driver.AppleUSBEHCI 3.7.5
com.apple.driver.AppleUSBUHCI 3.7.5
com.apple.driver.AppleEFINVRAM 1.3.0
com.apple.driver.AppleRTC 1.3
com.apple.driver.AppleHPET 1.4
com.apple.driver.AppleACPIButtons 1.3
com.apple.driver.AppleSMBIOS 1.4
com.apple.driver.AppleACPIEC 1.3
com.apple.driver.AppleAPIC 1.4
com.apple.security.sandbox 0
com.apple.security.quarantine 0
com.apple.nke.applicationfirewall 2.1.11
com.apple.driver.AppleIntelCPUPowerManagementClient 96.0.0
com.apple.driver.AppleIntelCPUPowerManagement 96.0.0
com.apple.driver.DspFuncLib 1.7.9a4
com.apple.driver.AppleProfileReadCounterAction 17
com.apple.driver.AppleProfileTimestampAction 10
com.apple.driver.AppleProfileThreadInfoAction 14
com.apple.driver.AppleProfileRegisterStateAction 10
com.apple.driver.AppleProfileKEventAction 10
com.apple.driver.AppleProfileCallstackAction 20
com.apple.iokit.IOFireWireIP 2.0.3
com.apple.iokit.IO80211Family 310.6
com.apple.iokit.IOSurface 73.0
com.apple.iokit.IOBluetoothSerialManager 2.2.4f3
com.apple.iokit.IOSerialFamily 10.0.3
com.apple.iokit.IOAudioFamily 1.7.2fc1
com.apple.kext.OSvKernDSPLib 1.3
com.apple.driver.AppleHDAController 1.7.9a4
com.apple.iokit.IOHDAFamily 1.7.9a4
com.apple.iokit.AppleProfileFamily 41
com.apple.driver.AppleSMC 3.0.1d2
com.apple.driver.IOPlatformPluginFamily 4.0.1d0
com.apple.nvidia.nv50hal 6.0.6
com.apple.NVDAResman 6.0.6
com.apple.iokit.IONDRVSupport 2.0
com.apple.iokit.IOGraphicsFamily 2.0
com.apple.driver.CSRUSBBluetoothHCIController 2.2.4f3
com.apple.driver.AppleUSBBluetoothHCIController 2.2.4f3
com.apple.iokit.IOBluetoothFamily 2.2.4f3
com.apple.iokit.IOUSBHIDDriver 3.8.4
com.apple.driver.AppleUSBMergeNub 3.8.5
com.apple.driver.AppleUSBComposite 3.7.5
com.apple.iokit.IOSCSIMultimediaCommandsDevice 2.6.0
com.apple.iokit.IOBDStorageFamily 1.6
com.apple.iokit.IODVDStorageFamily 1.6
com.apple.iokit.IOCDStorageFamily 1.6
com.apple.driver.XsanFilter 402.1
com.apple.iokit.IONetworkingFamily 1.9
com.apple.iokit.IOATAPIProtocolTransport 2.5.0
com.apple.iokit.IOSCSIArchitectureModelFamily 2.6.0
com.apple.iokit.IOAHCIFamily 2.0.2
com.apple.iokit.IOATAFamily 2.5.0
com.apple.iokit.IOUSBUserClient 3.8.5
com.apple.iokit.IOFireWireFamily 4.1.7
com.apple.iokit.IOUSBFamily 3.8.5
com.apple.driver.AppleEFIRuntime 1.3.0
com.apple.iokit.IOHIDFamily 1.6.1
com.apple.iokit.IOSMBusFamily 1.1
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 6
com.apple.driver.DiskImages 281
com.apple.iokit.IOStorageFamily 1.6
com.apple.driver.AppleACPIPlatform 1.3
com.apple.iokit.IOPCIFamily 2.6
com.apple.iokit.IOACPIFamily 1.3.0
Model: MacBookPro3,1, BootROM MBP31.0070.B07, 2 processors, Intel Core 2 Duo, 2.2 GHz, 4 GB, SMC 1.16f11
Graphics: NVIDIA GeForce 8600M GT, GeForce 8600M GT, PCIe, 128 MB
Memory Module: global_name
AirPort: spairportwireless_card_type_airportextreme (0x168C, 0x87), Atheros 5416: 2.0.19.4
Bluetooth: Version 2.2.4f3, 2 service, 0 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
PCI Card: pci168c,24, sppci_othernetwork, PCI Slot 5
Serial ATA Device: ST9320421ASG, 298.09 GB
Parallel ATA Device: MATSHITADVD-R UJ-857E
USB Device: Built-in iSight, 0x05ac (Apple Inc.), 0x8502, 0xfd400000
USB Device: Apple Internal Keyboard / Trackpad, 0x05ac (Apple Inc.), 0x021a, 0x5d200000
USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x8205, 0x1a100000
Anyone know what is causing my problems? I thought it was heat so I downloaded a CPU and FAN temperature monitor and the CPU was getting VERY HOT at first so I then ramped-up the CPU FAN SPEED to maximum - it turns out the CPU FAN was not rotating well at low speed - since then I have cleaned and checked the fans and they all work as they should and blow on high(er) when the CPU temperature is above a certain level.S.U.
Is there a kb article or something that would illuminate what to look for in these logs, or is it a matter of learning by osmosis?
Both. I am not skilled in reading logs. It is a very technical and time consuming task for the uninitiated (me!) In scanning a log I look for the backtrace and loading dependencies. The first item in the backtrace is usually the roadblock.
Beyond that you can look at the Technical Note TN2063: Understanding and Debugging Kernel Panics
Should make for good bedtime reading. Puts you right to sleep.
c -
Menu toolbar icons not displayed in colour when deployed on the Web
Hello!
We are developing an application using Forms6i on Windows NT.
Our problem is that menu toolbar icons are not displayed in colour when the application is deployed on the Web using lookAndFeel = generic. This is the case both when using Microsoft IE5 and Netscape 4.5. When lookAndFeel = oracle, however, the icons are displayed in colour.
The icons are stored as *.gif files in the same directory as the application *.html file. It does not help to create a virtual path /web_icons/ in the www listener and edit the parameter default.icons.iconpath in the file Registry.dat.
When running the application as client/server, the menu toolbar icons are displayed in colour as expected.
Any ideas on how to solve this problem?
Regards,
Kjell Pedersen
Nera SatCom AS
Norway
nullHi,
I got the same problem and I didn't figure out, how to solve this problem.
But did you try to printout the form anyway? I guess you will see the icons on the printout, won't you?
Regards
Dirk -
My original post, locked by this forum. Display problem related
Hi G5 Gurus,
The display problem first, we all know when screen savers display, a click on the mouse will bring you back to the active desktop, this was how it worked., but now, sometimes a click cause the G5 to sleep!
As for the sleep, I dare not to put it to sleep these days, because I am afriad it may cause a fire by over heating. Sometmes, actually four times in the past few months, my G5 could wake up by itself, followed by a extrem high speed running of the cooling fan, it sounded like a hair dryer running in the same room. Sometimes the sreen could light up, just like real wake up, sometimes, it was black. No clicks the mouse or keyboeard could bring it back to normal, I had to press and hold the power button to turn it off.
This crazy problem happened for the first time last summer, a dead hard disk was the cost. Apple replaced it, but failed to detect the cooling or power or display problem. I was given one month extended free service, but right after its end, the problem was back and happened even more often.
Please let me know if any of you had the same problem and please advise what to do.
100s Gs of thanks.
Songyan
iMac G5 Mac OS X (10.4.8)
la teller
Posts: 1
From: Los Angeles
Registered: Jan 10, 2007
Re: What's the problem? Display? Power supply? Cooling? My G5's gone mad
Posted: Jan 10, 2007 2:21 PM in response to: Bad luck G5
I have the EXACT same problem. In fact, I could not have described it better myself. What gives? I brought it in to the "genius" bar and they repolaced the power supply free of charge but the problem is still there. I noticed they ordered a new logic board but did not end up replacing it after all. Did you have yours replaced and did it work? Is this a known issue?
imac G5 17 inch Mac OS X (10.3.9)
Bad luck G5
Posts: 8
From: UK
Registered: Jan 10, 2007
Re: What's the problem? Display? Power supply? Cooling? My G5's gone mad
Posted: Jan 11, 2007 1:20 PM in response to: la teller
Hi La teller,
Thank you for your reply. The 'genius' here in London only replace the dead hard disk, which I belive was a victim of this problem. I was told they couldn't find anything wrong with the power supply or the cooling system.
Now at lest I know I am not the only bad luck guy. Let's wait and see if others are having the same problem. I am not sure if this is a known issue to Apple, even if it is, it may take years before they can offer a recall or free repaire. I noticed that some G5s have already been suffering from power problems and a free repaire was offered.
Thank you again and hope Apple can take our concerns into their consideration soon.
Songyan
iMac G5 Mac OS X (10.4.8)
stopha6
Posts: 1
From: US
Registered: Jan 12, 2007
Re: What's the problem? Display? Power supply? Cooling? My G5's gone mad
Posted: Jan 12, 2007 7:43 AM in response to: Bad luck G5
Hello,
I'm also having this problem (fan running, won't come out of sleep), just spoke with an apple care rep. He confirmed my suspition that it was software, not hardware as I have just had the logic board and power supply replaced.
His suggestions were to:
1. Run disk repair from the startup CD
try running OS X from a firewire drive and see if the same behavior happens or
perform and archive and install.
When the fan starts to run like that it means the OS is not communicating with the hardware properly. The OS could be somewhat corrupt if you were having hardware issues beforehand, hence the need for a reinstall. I will be performing an archive and install after the disk repair, I'll let you know if it fixes the problem!
iMac G5 Mac OS X (10.4.8)
Bad luck G5
Posts: 8
From: UK
Registered: Jan 10, 2007
Re: What's the problem? Display? Power supply? Cooling? My G5's gone mad
Posted: Jan 14, 2007 12:52 PM in response to: stopha6
Hi Stopha6,
Thank you for your message. I never imagined it could be a software issue, cos it looked so hardware.
Please keep me updated with your progress.
By the way, as I said in my old posts, a hard disk went dead when this happened for the very first time, how do you read this?
Thank you.
Songyan
iMac G5 Mac OS X (10.4.8)
Bad luck G5
Posts: 8
From: UK
Registered: Jan 10, 2007
Re: What's the problem? Display? Power supply? Cooling? My G5's gone mad
Posted: Jan 15, 2007 6:58 AM in response to: stopha6
Hi Stopha6,
After reading your reply again, I realized that the system had already been reinstalled. As I said when it happened for the first time, the hard disk died with it, which was replaced, of course with a new OS X, but the same problem is still happening. May this suggest that it is not just a software problem? Thank you. Songyan
iMac G5 Mac OS X (10.4.8)
AG-Nate
Posts: 5
From: Pismo Beach,CA
Registered: Aug 26, 2006
Re: What's the problem? Display? Power supply? Cooling? My G5's gone mad
Posted: Jan 14, 2007 3:38 PM in response to: Bad luck G5
The Fans going at full is only because you have an application that is using a lot of cpu power and therefore causing the imac to heat up so it turns the fans on. The screen-saver and sleep problem you describe sounds like something that may just happen on accident. But this sounds mostly like a software problem. Try making sure to always quit all non-apple products and see if anything changes.
eMac, iMacG5 Mac OS X (10.4.7) 800mhz 1gig ram, 2ghz 2gigs of ram
Bad luck G5
Posts: 8
From: UK
Registered: Jan 10, 2007
Re: What's the problem? Display? Power supply? Cooling? My G5's gone mad
Posted: Jan 15, 2007 6:50 AM in response to: AG-Nate
Thank you, Ag-Nate. I will try as you adivised but I con't think the fans were activeted my intensive CPU using. In most of the cases, the problems happened when the Mac was sleeping, when the minimum CPU were being used.
iMac G5 Mac OS X (10.4.8)
Timothy Klein
Posts: 15
From: Denver, CO, USA
Registered: Dec 6, 2004
Re: What's the problem? Display? Power supply? Cooling? My G5's gone mad
Posted: Jan 31, 2007 1:02 PM in response to: AG-Nate
"The Fans going at full is only because you have an application that is using a lot of cpu power and therefore causing the imac to heat up so it turns the fans on."
That's only partly right. A hard-working process will make the fans run at high speed, of course.
But, the OS is in touch with the firmware of the iMac, telling it how to run the fans, based upon information the OS X kernel is getting about the state of the hardware.
If the firmware loses touch with the OS for some reason, and is not getting instructions on how to run the fan, it will default to running them at full blast, to be on the safe side (and this "full blast" fan mode is way louder than anything you'll generally experience during normal usage, I know from experience).
So it may not be so simple as a hard-working cpu process kicking the fans on.
iMac G5 17" 1.6 GHz Rev. A Mac OS X (10.4.8) 1 GB Ram
Kensall
Posts: 2
From: London, England
Registered: Feb 2, 2007
Re: What's the problem? Display? Power supply? Cooling? My G5's gone mad
Posted: Feb 2, 2007 9:05 AM in response to: Timothy Klein
Hi I have a 20" G5 imac it's about 18 months old and I am having the same problem, It freezes and the fan runs really loud. It's nothing to do with software as my I.T. guy has done a complete re-install. All of our admin people have imacs of differring ages and the flat panels are all OK but every one of the G5s has had a booting problem. Some fell into the recall for replacement logic boards but the one I have at home is the newest and doesn't. I'm waiting for my apple reseller to get back to me, but it looks like it's the logic board and as none of the serial numbers fall into the recall, I'm expecting a big bill. I'm really disappointed as I've been a professional apple user for over 15 years and have grown to expect a certain amount of honesty and integrity from them. Looking at all of the discussion boards and the amount of people complaining of the same problem the logic boards are defective and apple should be replacing these free of charge.
i mac G5 Mac OS X (10.4.8)
a brody
Posts: 15,170
From: Silver Spring, Maryland. Don't forget to backup your data!
Registered: Dec 23, 2000
Re: What's the problem? Display? Power supply? Cooling? My G5's gone mad
Posted: Feb 2, 2007 10:27 AM in response to: Kensall
Kensall,
Welcome to Apple Discussions!
As in the other thread I wrote:
Being from England, you may find the repair program under these pages:
http://www.apple.com/uk/support/imac/repairextensionprogram/
http://www.apple.com/uk/support/imac/powersupply/repairextension/
Check both of them as they refer to different models.
If neither of yours is under the program, please start a new topic thread so someone can help you.
http://discussions.apple.com/forum.jspa?forumID=881
First off, you'll get a wider audience who may be able to solve your problem. Secondly, responses to you won't confuse the original poster with solutions that don't apply to them. And thirdly, you'll know for certain whether or not a response applies to you.
iMac C2D 2.17/20 inch/iMac G5 1.8 1st gen/iMac G4 800 Mac OS 9 Mac OS X (10.4.8) EyeTV 200, Canon PS A530 , Epson P-R220, iSight, Airport Extreme, 5th Gen iPodI am having a very similar problem. My G5 imac has already had the logic board replaced from the leaking capacitor problem. 8 mos. later the power supply was replaced under the second recall program when it failed to start up.
It had been working now for almost a year, when about 3 mos. ago I started to experience the sudden dimming effect - if the display was untouched the screen would dim about 30% similar to a laptop in energy save mode. I checked and none of these types of options were set in the pref panes. At the same time I would have the iMac go to sleep after a while from non-use, and then when I tried to wake it it would stir for a few seconds and then go right back to sleep. It took 2-3 attempts to wake it up.
Then last week, as I tried to wake it, it just shut down instead completely. I had to hold the power button down to recycle it to get it to come back to life (3 times).
Today was it - I found what I thought was a sleeping iMac, but it will not power up at all. I opened the back cover and the power supply is working, but I cannot get the board to energize, I reset the PMU, but the #2 LED won't even blink. It is completely dead.
Basically every time I used this computer I held my breath that it would not work. After 2 recalls I still only get 9 mos. out of it? Apple is really starting to show it is like the "big" computer makers, the quality is going right down the tubes.
iMac G5 Mac OS X (10.4.4) -
Why is netflix having display problems on my macbook pro... HDCP compliance?
Watching Netflix and all of a sudden it says "Display Problems" Make sure your monitor is HDCP Compliant and is not setup for mirror airplay??
The issue is from Safari defaulting to HTML5 vs using Silverlight like it did in Mavericks.
So the options are, if you want to use Safari goto your Netflix account, playback preferences and turn off HTML5. This will revert to Silverlight and will AirPlay fine*in Safari.
If you want to use HTML5, just leave the setting for HTML5 on in Netflix and use Chrome, Firefox, etc.
You can't currently have both Safari and HTML5 Netflix when using AirPlay. You'd think Safari would be a little bit more powerful with Apples stances on browser extensions. -
2x iMac G5: Both Logic Board and Display Problems, Warrenty?
Hello,
Thank you for looking at this topic.
I am Jeroen from The Netherlands and proud owner of several Mac Mini's, iMac's and Macbook's. I have 2times the iMac G5, a beautiful machine, but both not working since 2 months.
I have two times the iMac G5 with iSight, both have logic board and display problems.
The first iMac doenst start at all, black screen, i hear the chime, but nothing happening. After a minute i see one horizantal white stripe but nothing happens.
The second iMac has weird horizantal stripes also, but the computer starts. It gives a finder and questionmark icon. After a while the fans go crazy.
Both these symptons are widely known on the internet. I would like to get this fixed, but prices are crazy. And because this is a common issue I would expect to get this fixed for no costs. I have contacted several Apple resellers but they shown me high prices and bad services. On these forums I've saw people in the USA who get this fixed free of charge.
Does anyone has any advice for me? I'll call apple USA this morning.
Thankyou for ur time.Welcome to Apple Discussions.
I know of no repair extension authorization which provides for the repair of either computer you describe beyond its original 12 month period of coverage. If either machine is covered by a warranty extension program provided by AppleCare, then the parts, labor or both required to replace the defective components may be offered at no charge to you. Final determination of eligibility is made at the part level by authorized Apple service providers or dealers and by the specific serial number of the machine submitted for service.
Absent a warranty extension, however, it is quite likely that you will have to pay for the repairs is you elect to have them performed. -
Display problem in macbook pro 13
I have been facing a display problem in my macbook pro (mid 2010, 13 inch) for more than six month. I talked to many persons from applecare and conformed to their advice. but the problem remains same. I went to apple authorised service provider at least 8 times. they changed my logic board, RAM etc. the problem remains same.
finally, I talked to applecare again. they adviced me to run fresh Lion installation and observe the machine without any thridd party software. I got the same problem.
when I call them, every person attending the call advices me new thing ! they are very polite and say: "if you have this problem again, please inform me." unfortunately, when I write them again about the same problem they do not care it !!!
I am very much frustated and psychologically tired with this issue.
Thanks a lot for your assistance.I can only do wild guesses at this popint, only thing I can think of on your end is possible AC power problems, but I've not been impressed with Apple's quality since the 68K or Beige days.
THe iMac7,1 I'm on now needed repair 3 times & still scares me with it's PSU temps. -
Ideacentre B320 display problem
I'm suffering from a display problem, and cannot figure if it's a software or hardware issue... I'm on Win7 64bit. Here are the symptoms:
1) For a while now, intermittently the screen would go grey (or some sort of a messed up pattern of rgb pixels) and I would have to power down forcefully. The frequency of this has gone up very much in the recent weeks
2) When the machine freezes, I can still hear the music playing, and Windows continues to do whatever it was doing before
3) Recently (I'm guessing after a Windows update), I wasn't able to boot into normal mode anymore. It would show the Windows splash screen, then before the login screen appears it would just go black and freeze. Leaving it for a long time doesn't lead to recovery
4) To try and fix this, I've updated the ATI driver to the latest version, which didn't work so progressively tried every version between the11.6 and 10.3 (4?) which was the default when the machine was purchased. No luck there. I've also flashed the bios and that didn't help either
5) I can boot into safe mode, so I disabled amdkmdap using sysinternal's autoruns.exe, which meant that I can boot into normal mode, but it woud fall back onto Windows' vga driver (1400x1050 only!)
6) Now, even in the low res mode, almost daily the grey screen freezing would happen and I would have to reboot. Tapping the power button allows the shutdown dialog to come up (I'm guessing), and pressing enter would shut down the machine then.
There's an awful lot of posts on the internet regarding people having issues with ATI HD6450 and similar category cards, some of which sound similar to my case. They too experienced the freezing problem and reverting or upgrading the drivers had no effect (many even reinstalled windows completely). It sounds like though, the problem is software in origin at a guess.
On the other hand, the machine is now 3-4 years old and I could imagine that the GPU or graphics memory might have suffered wear and tear -- emailing Lenovo support took a week to get a response, the only thing they asked was whether my warranty is still active (after that it's been a complete silence) are they usually this terrible?
The last thing is, when the problem first occurred I booted using a linux live CD and it was all fine, at full resolution graphics. I haven't repeated this experiment since it takes quite a while to boot from a CD... but suggested that the hardware is intact. In fact, by messing about with the drivers I was able to boot into Windows normal mode and operate for 1-2 days, after which the grey freeze happened again. I haven't been able to get back into that since.
Here is my question: Is there a way to find out whether it's software or hardware that's at fault? If it turns out to be hardware, what are my options at replacements? The GPU is soldered onto the motherboard, so do I have to replace the whole thing? If it's a software issue, would restoring to factory default state fix this issue, given that an unknown update could cause the same issue at any time... This is the last time I will buy an AIO without removable everything.Welcome to the Lenovo Community !
Probably a good test of the hardware is use the Linux Live CD that you used earlier. If the graphics are still good when using the Live CD then your monitor and GPU are fine.
If the hardware checks out Ok then I suspect you have a driver problem. Try using a driver cleaner to fully uninstall the ATI driver since bit and pieces left over from previous driver installs can cause problems. The link below is for a free and highly recommended utility for cleaning the system of the graphic drivers. After the clean up I would try installing the original driver that came with your system.
http://www.guru3d.com/content-page/guru3d-driver-sweeper.html
Owner & Operator of the following:
● Lenovo Ideapad Z570 w/ Win 7 & Win 8.1 Dual Boot ● Lenovo Yoga 3 Pro w/ Windows 8.1 ● Toshiba A75-S206 w/ Win 7
● IBM Thinkpad T-23 w/ Win XP ● IBM Thinkpad T-22 w/ Win XP • As well as multiple desktops dual/triple booting XP, Vista and Win 7.
★ Find a post helpful? Thank that member by clicking on the ☆Star☆ to the left awarding them a Kudo.
★ Posting a problem and a reply is helpful and it answers your question, please mark it as an "Accepted Solution"
★ I'm not a Lenovo employee, just a volunteer geek who likes to help folks. Enjoy your time here, pay it forward by helping others !
★ Sorry, I don't answer questions via Private Messages. Posting in the appropriate forum is the best way to get assistance. -
Product name-15-p001TX
Operating systems-Windows 8.1
Respected to whom so ever is concern,
In my notebook pc i have an display problem, some times while working on it, it blinks automatically. sometimes it is bright and some times it is lite. The coustmer care had asked me to download intel high defination(HD) graphics driver and nvida graphics driver. i have downloaded intel high defination(HD) graphics driver but it had not insatlled on my laptop the error occured was that " the system does not meet the minimum requriements." now i am downloading nvida graphics driver which is of about 434 MB.
So i request you to please give me proper solution to my problems. i request you to provide my correct solutions as soon as possible. my mail id is [edited personally identifiable information] and my mob no is [edited personally identifiable information].
Thank you.Hello @Ronny123 welcome to the HP Forums.
I see that you're having a display problem, that you've spoken to support and they were having you update the drivers. I will try to assist you with this.
The steps that you were provided are on the correct path, as you ran into an issue with this. Please trying installing the following drivers while in Safe Mode.
Intel High-Definition (HD) Graphics Driver
NVIDIA Graphics Driver
Please ensure that you install them in that order.
If you run into the same problem in Safe Mode, start the computer back up normally and try the steps provided in this document: Display Quality Issues.
If those both fail, do a system refresh: Refresh Your PC to Resolve Problems (Windows 8).
Let me know if any of the above was able to help you with this issue.
Thank you for posting on the HP Forums.
I worked on behalf of HP. -
Display problem in my hp pavilion -15e015tx the screen blinks and get freeze for a second
i am using hp pavilion 15-e015tx running window 8 i had complained on 18 oct 2014 regarding the display problem. my case id is 4739018980. till now the issuse is not solved. the engineer came , checked the laptop and said quotation will be send within few days and tookaway his service charges Rs.1400. Still waiting for the quotation .every time i call in hp support service they tell they will send quotation the same day but there is no response. pls send the quotatiom as soon as possible. i am feedup calling hp support care now.
"very bad support service"
"3rd class customer service"Hi @Poo0507 ,
I just sent you a private message. If you are not sure how to check your forum messages this post, has instructions.
Please click “Accept as Solution ” if you feel my post solved your issue.
Click the “Kudos Thumbs Up" on the right to say “Thanks” for helping!
Thank you,
BHK6
I work on behalf of HP
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